Graco Reactor E-XP1 Troubleshooting Manual page 40

Reactor Error Code Trouble Shooting Guide
 Capacitor check procedure
o Remove the Reactor from power source and wait 15 minutes to allow the capacitor to drain
the stored energy through the motor circuit.
Locate the large blue capacitor in the lower cabinet, upper right hand corner.
Perform a general inspection of the capacitor for shape distortion, cracks, or leakage.
Short across the two terminal leads with an insulated handle screwdriver to verify the
capacitor is fully discharged. Remove the plug from the motor control board J1 connector.
Set the ohm test meter to a high range of at least 1K ohm. Connect the meter leads black to (-)
and red to (+). The meter reading should start at 0 ohms, then move up scale 10K to 20K
ohms as the battery from your test meter confirms the capacitor is able to accept a charge.
A reading of constant 0 zero, (short) or OL, (open loop) would indicate a bad capacitor.
Rev 2.6 (02/2014) Page 40